Couldn't they just have walked away from her until she wore out? Maybe she was throwing these things or something? Still sounds strange.
No kidding, walk out and shut the door. Let her exhaust herself wrecking the place and then send her ass to a psych unit.
The mistake was calling 911 to deal with a temper tantrum in the first place.
I feel sorry for the cops being used to solve their family relational problems. Nobody meant for this to happen, but it did because the family tried to manipulate their diabled family member through escalation. And she escalated right back. Problem is, that escalating a confrontation with LEO gets you shot by a gun or taser. It's what they do, it's their job. God, I feel sorry for those cops.